CN110127742A - A kind of method of producing nano-calcium carbonate for water paint - Google Patents
A kind of method of producing nano-calcium carbonate for water paint Download PDFInfo
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- CN110127742A CN110127742A CN201910320996.7A CN201910320996A CN110127742A CN 110127742 A CN110127742 A CN 110127742A CN 201910320996 A CN201910320996 A CN 201910320996A CN 110127742 A CN110127742 A CN 110127742A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Geology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of method of producing nano-calcium carbonate for water paint, preparation method is that crystal control agent is added in calcium hydroxide suspension to be carbonized, it adds after dispersing agent and continues carbonization and be aged again, then surface treating agent aqueous solution is added and carries out cladding processing, refiltering to solid content is 20~30% up to nanometer calcium carbonate of the invention.Nanometer calcium carbonate crystal form prepared by the present invention is in complete cube, and average grain diameter is 60~80nm, and specific surface area is greater than 26m2/ g, particle distribution is uniform, good dispersion, soilless sticking phenomenon.In water paint hydrophilic and oleophilic, good dispersion, with the good nanometer calcium carbonate of base-material associativity improve the water resistance of coating, abrasion resistance to improve rheological characteristic, the can opening effect of coating and reduce its cost of material.
Description
Technical field
The present invention relates to a kind of method of producing nano-calcium carbonate for water paint, belong to nano material preparation technology neck
Domain.
Background technique
Nanometer calcium carbonate has the characteristics that nontoxic, odorless, tasteless filler as product as inorganic powder material
Or function additive, it is a kind of very environmentally friendly material, is widely used in fields such as coating, plastics, rubber, ink, sealants.
Nm-class active calcium carbonate is by the surface to nanometer calcium carbonate as its key problem in technology of the functional filler of coating
Processing is allowed to generate good compatibility with coating, to play the functional attributes such as rheological characteristic, the adhesive force for improving coating.
But what existing mature technology solved is nanometer calcium carbonate oleophilic drainage, and water paint be exactly to solve oil,
Thus the encompassing problem of water is proposed new requirement to the crystal form of nanometer calcium carbonate, surface treatment.It is an object of the invention to
Develop a kind of hydrophilic and oleophilic, good dispersion, with the good nanometer calcium carbonate of base-material associativity, to improve rheological characteristic, the can opening of coating
Effect improves the water resistance of coating, abrasion resistance and reduces its cost of material.
Summary of the invention
To achieve the above object, the present invention provides a kind of method of producing nano-calcium carbonate for water paint, the present invention
Used technical solution is:
A kind of method of producing nano-calcium carbonate for water paint comprising following steps:
Step 1: by Ca (OH)2The suspension that slurry preparation is 90~120% at mass percent concentration is added Ca (OH)2
0.1~3.0% crystal control agent of slurry weight, is passed through at 10~45 DEG C containing CO2Gas be carbonized, in gas
CO2Content be maintained between 20~35%, when carbonation rate reaches 20~55% be added Ca (OH)2The 0.01 of slurry weight~
1.5% dispersing agent, continuing to be carbonized to PH is 6.5~7.0；
Step 2: surface treating agent being configured to the aqueous solution that mass concentration is 5~15%, 60~90 DEG C is warming up to, obtains table
Surface treatment agent aqueous solution is spare；
Step 3: the nanometer calcium carbonate slurries after carbonization being placed in maturing equipment and are aged；
Step 4: into the nanometer calcium carbonate slurries after ageing be added nanometer calcium carbonate dispersion slurry weight 2.0~
6.0% surface treating agent aqueous solution, stirs evenly, and carries out 0.5~3.5h of cladding processing；
Step 5: by nanometer calcium carbonate slurries after surface treatment filter to solid content 20~30% slurry to get this hair
Bright nanometer calcium carbonate.
Further, the crystal control agent be inorganic salts, ammonia salt, citric acid, disaccharides or polysaccharide in any one or
Any several mixture, preferably sodium carbonate, sodium chloride, citric acid and sugar.
Further, the dispersing agent is silicate, in alkali metal phosphate, polyacrylamide, fat acid polyethylene glycol ester
Any one or any several mixture, preferably sodium metasilicate, calgon, sodium pyrophosphate and polyacrylamide.
Further, the surface treating agent is at least two kinds of anionic surfactants, preferably dodecyl benzene sulfonic acid
Sodium, Aerosol OT and NaLS.
The nanometer calcium carbonate crystal form prepared according to the above method is in complete cube, and average grain diameter is 60~80nm, specific surface
Product is greater than 26m2/ g, particle distribution is uniform, soilless sticking phenomenon.
The beneficial effects of the present invention are: nanometer calcium carbonate crystal form prepared by the present invention is in complete cube, average grain diameter
For 60~80nm, specific surface area is greater than 26m2/ g, particle distribution is uniform, good dispersion, soilless sticking phenomenon.It is close in water paint
Water oleophylic, good dispersion are improved and are applied to improve rheological characteristic, the can opening effect of coating with the good nanometer calcium carbonate of base-material associativity
The water resistance of material, abrasion resistance and reduce its cost of material.
Specific embodiment
Below with reference to embodiment, the present invention will be further described:
Embodiment 1:
A kind of method of producing nano-calcium carbonate for water paint, preparation method are as follows:
It is 90%Ca (OH) that 0.8 cubic metre of mass percent concentration is added in 1 cubic metre of carbonization kettle2Slurry, reaction
The preceding mixture that 0.07kg sodium carbonate and 0.2kg sugar is added, is carbonized 13 DEG C of initial temperature, is passed through containing CO2Content 20~
30% kiln gas is carbonized, and kiln gas flow is 8m30.05kg calgon and 0.05kg coke phosphorus is added after/h, the 0.6h that is carbonized
Sour sodium is further continued for carbonization to pH value up to 7, is subsequently placed in maturing equipment and is aged.
40L water is added in 60L reaction kettle, 85 DEG C are warming up to, by 2.2kg neopelex and 0.6kg amber
Sour di-isooctyl sodium sulfonate is added in reaction kettle, stirs 30min, surface treating agent liquid is made, then adds surface treating agent liquid
Enter and have warmed up into the nanometer calcium carbonate slurries after 90 DEG C of ageing, constant temperature is surface-treated 1h, and slurry is filled into while hot and is contained admittedly
Amount 30% obtains aqueous nanometer calcium slurry.
The nanometer calcium carbonate partial size of the production is greater than 26m in 60nm, cubic type, specific surface area2/g.Nanometer calcium carbonate is starched
Material addition 20% is dispersed with stirring 10min with high speed disperser into acrylic acid aqueous paint binder, is tested with Hegman fineness grind instrument,
With acrylic acid aqueous paint binder compare, fineness keep one to.The acrylic acid aqueous coating of nanometer calcium carbonate slurry will have been added
Base-material and the acrylic acid aqueous paint binder for being not added with nanometer calcium carbonate slurry are placed in 105 DEG C of degree baking ovens can be seen that for 24 hours
Acrylic acid aqueous painting of the acrylic acid aqueous paint binder of nanometer calcium carbonate slurry than being not added with nanometer calcium carbonate slurry is added
Expect that base-material anti-settling effect is good.
Embodiment 2:
A kind of method of producing nano-calcium carbonate for water paint, preparation method are as follows:
It is 90%Ca (OH) that 0.8 cubic metre of mass percent concentration is added in 1 cubic metre of carbonization kettle2Slurry, reaction
The preceding mixture that 0.08kg sodium chloride and 0.15kg citric acid is added, is carbonized 30 DEG C of initial temperature, is passed through containing CO2Content is 20
~30% kiln gas is carbonized, and kiln gas flow is 7m30.07kg sodium metasilicate and 0.07kg pyrophosphoric acid is added after/h, the 1h that is carbonized
Sodium is further continued for carbonization to pH value up to 7, is subsequently placed in maturing equipment and is aged.
40L water is added in 60L reaction kettle, 85 DEG C are warming up to, by 2.2kg neopelex and 0.6kg laurel
Base sodium sulphate is added in reaction kettle, stirs 30min, surface treating agent liquid is made, and then has warmed up the addition of surface treating agent liquid
In nanometer calcium carbonate slurries after to 90 DEG C of ageings, constant temperature is surface-treated 1h, and slurry is filled into solid content 28% while hot, is obtained
It is aqueous to use nanometer calcium slurry.
The nanometer calcium carbonate partial size of the production is greater than 26m in 65nm, cubic type, specific surface area2/g.Nanometer calcium carbonate is starched
Material addition 20% is dispersed with stirring 10min with high speed disperser into acrylic acid aqueous paint binder, is tested with Hegman fineness grind instrument,
With acrylic acid aqueous paint binder compare, fineness keep one to.The acrylic acid aqueous coating of nanometer calcium carbonate slurry will have been added
Base-material and the acrylic acid aqueous paint binder for being not added with nanometer calcium carbonate slurry are placed in 105 DEG C of degree baking ovens can be seen that for 24 hours
Acrylic acid aqueous painting of the acrylic acid aqueous paint binder of nanometer calcium carbonate slurry than being not added with nanometer calcium carbonate slurry is added
Expect that base-material anti-settling effect is good.
Embodiment 3:
A kind of method of producing nano-calcium carbonate for water paint, preparation method are as follows:
It is 105%Ca (OH) that 0.8 cubic metre of mass percent concentration is added in 1 cubic metre of carbonization kettle2Slurry, reaction
The preceding mixture that 0.06kg citric acid and 0.2kg sugar is added, is carbonized 45 DEG C of initial temperature, is passed through containing CO2Content 20~
30% kiln gas is carbonized, and kiln gas flow is 7m30.05kg calgon and 0.05kg silicic acid is added after/h, the 1h that is carbonized
Aluminium is further continued for carbonization to pH value up to 7, is subsequently placed in maturing equipment and is aged.
40L water is added in 60L reaction kettle, 85 DEG C are warming up to, by 2kg neopelex and 0.5kg succinic acid
Di-isooctyl sodium sulfonate and 0.5kg NaLS are added in reaction kettle, stir 30min, surface treating agent liquid are made, then
The addition of surface treating agent liquid is had warmed up into the nanometer calcium carbonate slurries after 90 DEG C of ageing, constant temperature is surface-treated 1h, will starch
Material is filled into solid content 25% while hot, obtains aqueous nanometer calcium slurry.
The nanometer calcium carbonate partial size of the production is greater than 26m in 70nm, cubic type, specific surface area2/g.Nanometer calcium carbonate is starched
Material addition 20% is dispersed with stirring 10min with high speed disperser into acrylic acid aqueous paint binder, is tested with Hegman fineness grind instrument,
With acrylic acid aqueous paint binder compare, fineness keep one to.The acrylic acid aqueous coating of nanometer calcium carbonate slurry will have been added
Base-material and the acrylic acid aqueous paint binder for being not added with nanometer calcium carbonate slurry are placed in 105 DEG C of degree baking ovens can be seen that for 24 hours
Acrylic acid aqueous painting of the acrylic acid aqueous paint binder of nanometer calcium carbonate slurry than being not added with nanometer calcium carbonate slurry is added
Expect that base-material anti-settling effect is good.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and range is defined.The claimed technology contents of the present invention, are all described in the claims.
Claims (4)
1. a kind of method of producing nano-calcium carbonate for water paint, it is characterised in that: the following steps are included:
Step 1: by Ca (OH)2The suspension that slurry preparation is 90~120% at mass percent concentration is added Ca (OH)2Slurry
0.1~3.0% crystal control agent of weight, is passed through at 10~45 DEG C containing CO2Gas be carbonized, CO in gas2's
Content is maintained between 20~35%, and Ca (OH) is added when carbonation rate reaches 20~55%2The 0.01~1.5% of slurry weight
Dispersing agent, continue carbonization to PH be 6.5~7.0；
Step 2: surface treating agent being configured to the aqueous solution that mass concentration is 5~15%, 60~90 DEG C is warming up to, obtains at surface
It is spare to manage agent aqueous solution；
Step 3: the nanometer calcium carbonate slurries after carbonization being placed in maturing equipment and are aged；
Step 4: the 2.0~6.0% of nanometer calcium carbonate dispersion slurry weight being added into the nanometer calcium carbonate slurries after ageing
Surface treating agent aqueous solution, stirs evenly, and carries out 0.5~3.5h of cladding processing；
Step 5: by nanometer calcium carbonate slurries after surface treatment filter to solid content 20~30% slurry to get of the invention
Nanometer calcium carbonate.
2. a kind of method of producing nano-calcium carbonate for water paint according to claim 1, it is characterised in that: described
Crystal control agent is any one or any several mixture in inorganic salts, ammonia salt, citric acid, disaccharides or polysaccharide.
3. a kind of method of producing nano-calcium carbonate for water paint according to claim 1, it is characterised in that: described
Dispersing agent be silicate, alkali metal phosphate, polyacrylamide, in fat acid polyethylene glycol ester any one or it is any several
Mixture.
4. a kind of method of producing nano-calcium carbonate for water paint according to claim 1, it is characterised in that: described
Surface treating agent is at least two kinds of anionic surfactants.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320996.7A CN110127742A (en) | 2019-04-21 | 2019-04-21 | A kind of method of producing nano-calcium carbonate for water paint |
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| CN201910320996.7A CN110127742A (en) | 2019-04-21 | 2019-04-21 | A kind of method of producing nano-calcium carbonate for water paint |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439770A (en) * | 2019-11-21 | 2020-07-24 | 东北石油大学 | Hydrophobic calcium carbonate and preparation method thereof |
| CN111961373A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Nano calcium carbonate powder water-based paint and preparation method thereof |
| CN111960453A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Preparation method of nano calcium carbonate for water-based paint |
| CN112340763A (en) * | 2020-12-07 | 2021-02-09 | 江西华明纳米碳酸钙有限公司 | Preparation method of special nano calcium carbonate for water-based ink |
| CN112409822A (en) * | 2020-12-07 | 2021-02-26 | 江西华明纳米碳酸钙有限公司 | Preparation method of special nano calcium carbonate for water-based paint |
| CN112723402A (en) * | 2021-01-11 | 2021-04-30 | 广西华纳新材料科技有限公司 | Preparation method of monodisperse spindle-shaped precipitated calcium carbonate |
| CN114381038A (en) * | 2021-11-15 | 2022-04-22 | 宣城新威华化工科技有限公司 | Preparation method of low-temperature-resistant water-based acrylic resin coating and nano calcium carbonate cluster compound used by same |
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| CN107903819A (en) * | 2017-11-21 | 2018-04-13 | 广西武宣金牌防水材料科技有限公司 | Polyurethane-modified asphalt waterproofing paint of antimicrobial form and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439770A (en) * | 2019-11-21 | 2020-07-24 | 东北石油大学 | Hydrophobic calcium carbonate and preparation method thereof |
| CN111439770B (en) * | 2019-11-21 | 2022-09-16 | 东北石油大学 | Hydrophobic calcium carbonate and preparation method thereof |
| CN111961373A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Nano calcium carbonate powder water-based paint and preparation method thereof |
| CN111960453A (en) * | 2020-07-07 | 2020-11-20 | 广西夏阳环保科技有限公司 | Preparation method of nano calcium carbonate for water-based paint |
| CN112340763A (en) * | 2020-12-07 | 2021-02-09 | 江西华明纳米碳酸钙有限公司 | Preparation method of special nano calcium carbonate for water-based ink |
| CN112409822A (en) * | 2020-12-07 | 2021-02-26 | 江西华明纳米碳酸钙有限公司 | Preparation method of special nano calcium carbonate for water-based paint |
| CN112723402A (en) * | 2021-01-11 | 2021-04-30 | 广西华纳新材料科技有限公司 | Preparation method of monodisperse spindle-shaped precipitated calcium carbonate |
| CN112723402B (en) * | 2021-01-11 | 2023-03-31 | 广西华纳新材料股份有限公司 | Preparation method of monodisperse spindle-shaped precipitated calcium carbonate |
| CN114381038A (en) * | 2021-11-15 | 2022-04-22 | 宣城新威华化工科技有限公司 | Preparation method of low-temperature-resistant water-based acrylic resin coating and nano calcium carbonate cluster compound used by same |
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